189 citations · 1.9k across the 148 of their papers we have counts for
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math-ph2015★ 14 cited
Relation between two-phase quantum walks and the topological invariant
Takako Endo, Norio Konno, Hideaki Obuse
We study a position-dependent discrete-time quantum walk (QW) in one dimension, whose time-evolution operator is built up from two coin operators which are distinguished by phase f…
math-ph2015
The discrete-time quaternionic quantum walk on a graph
Norio Konno, Hideo Mitsuhashi, Iwao Sato
Recently, the quaternionic quantum walk was formulated by the first author as a generalization of discrete-time quantum walks. We treat the right eigenvalue problem of quaternionic…